<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="container">
    <div class="left-top"></div>
    <div class="right-bottom"></div>
</div>
</body>
</html>